Call of Duty: Modern Warfare 2 GuideWhat is the "call of duty?" Duty, is defined by Merriam Webster as "obligatory tasks, conduct, service, and functions that arise from one's position in ... a group."

Tasks and behavior that are obligatory are all ultimately voluntary. However, the "call" which precedes this statement makes shirking or ignoring these tasks socially unacceptable, and morally disdainful.

Here then, the phrase "call of duty" makes a set of tasks very obligatory. Those who ignore it are free to do so, but at the cost of their own conscience and contribution to the good of society.

* BASICS // Of the game, in case you're new to the series.* WALKTHROUGH // For Veterans who've gone through the campaign on Normal already.* INTEL // Because military intelligence is an oxymoron.* SPEC OPS // Again, all done on Veteran, because you get three stars or you get nothing.* MULTIPLAYER // Video strategy showing how to get to secret locations on multiplayer maps.* Q & A // About common game problems (note ? technical PC issues are not covered).